Hardware Spec Index

Zephyra FN-3964 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3964-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index284 (Case Fans scale)
Category rank#4,745
Street price$9
Power3 W
Performance per dollar31.56
Released2020

Specifications

BrandZephyra
ModelZephyra FN-3964 Ultra
Size120 × 120 × 25 mm
Speed200–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3964 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/1856576 (accessed 2026-10-20).